I have a 2008 A6 3.0 v6 tdi Quattro. When I go to start the car in a morning it starts fine but there is no PRNDS illuminated. After 20-30 mins of the car ticking over the PRNDS will then appear. It will select gear and change smoothly. But if I leave it turned off for 2-3 hours the whole process starts Augean.
Any help will be much appreciated.